Comparison · GPU vs GPU · read 00:16 UTCRTX 3090 vs RTX 4090 D
Specifications, today's prices from 18 providers, price per unit of memory and compute, and who rents each cheapest. Better values are highlighted; lower is better for prices.
Side by sideSpecs, prices, value
Highlighted cells are the better of the two: more memory and compute, lower prices, lower cost per unit.
| RTX 3090 | RTX 4090 D | Difference | |
|---|---|---|---|
| Memory & compute | |||
| VRAM | 24 GB | 24 GB | 0% |
| Memory bandwidth | 0.94 TB/s | 1.01 TB/s | -7% |
| FP16 tensor | — | — | — |
| FP32 | 35.6 TFLOPS | 73.5 TFLOPS | -52% |
| Power | 350 W | 425 W | -18% |
| Prices today | |||
| Cheapest on-demand | $0.09 | $0.26 | -65% |
| Median on-demand | $0.19 | $0.36 | -48% |
| Highest on-demand | $0.58 | $0.40 | +45% |
| Cheapest spot | $0.08 | $0.27 | -70% |
| Cheapest reserved | $0.18 | — | — |
| Current offers (n) | 32 | 3 | +967% |
| Providers with a fresh offer | 15 | 3 | +400% |
| Value | |||
| Per GB of VRAM · hour (cheapest) | $0.004 | $0.011 | -65% |
| Per GB of VRAM · hour (median) | $0.008 | $0.015 | -48% |
| Per PFLOP FP16 · hour (median) | — | — | — |
| Per TB/s · hour (median) | $0.202 | $0.357 | -43% |
| Trend | |||
| 30-day median change | +4.3% | — | — |
| 90-day median change | +41.2% | — | — |
90 days · median on-demand price · rebased to 100How the two have moved
Both medians indexed to 100 ninety days ago, so the slopes compare even though the price levels differ.
Cheapest providers today · on-demand · current offersWho rents each one cheapest
- 1
Akash NetworkTrust 481× $0.09
- 2
Vast.aiTrust 781× $0.10 - 3
Clore.aiTrust 495× $0.10
- 1Clore.aiTrust 491× $0.26
- 2
AtmosCompute1× $0.36 - 3Vast.aiTrust 781× $0.40
Verdict · computed from the numbers aboveChoose one, choose the other
Choose the RTX 3090 if…
- the hourly price matters most: median $0.19 against $0.36, 48% less.
- you serve LLMs: memory bandwidth per dollar is better ($0.202 per TB/s-hour against $0.357).
- you want choice: 15 providers have a fresh offer today against 3.
Choose the RTX 4090 D if…
- No metric above favours it today.
Questions about RTX 3090 vs RTX 4090 D
Which is cheaper to rent, the RTX 3090 or the RTX 4090 D?
Today the cheapest current on-demand RTX 3090 is $0.09 per GPU-hour and the cheapest RTX 4090 D is $0.26; medians are $0.19 and $0.36. Cheapest excludes offers marked unavailable and counts one floor per marketplace.
How much memory do the RTX 3090 and RTX 4090 D have?
24 GB of GDDR6X on the RTX 3090, 24 GB of GDDR6X on the RTX 4090 D, at 0.94 and 1.01 TB/s.
Where do these numbers come from?
From 35 current offers read on the providers' own pages and APIs over the last 45 days (reference 00:16 UTC), or in our October 2026 market study for the few providers our collector does not read. Specifications come from manufacturer datasheets. Every price on the GPU pages links to its receipt and shows its read date.